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Questions and Answers
What is the price-to-rent ratio for the house in San Diego?
What is the price-to-rent ratio for the house in San Diego?
Based on the calculated price-to-rent ratio, what is the suggested option for renting or buying a home in Orlando?
Based on the calculated price-to-rent ratio, what is the suggested option for renting or buying a home in Orlando?
How many students are there per faculty member at Swarthmore College?
How many students are there per faculty member at Swarthmore College?
Which university has the highest number of students enrolled according to the data?
Which university has the highest number of students enrolled according to the data?
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What is the primary factor in determining whether to buy or rent a home according to the price-to-rent ratio analysis?
What is the primary factor in determining whether to buy or rent a home according to the price-to-rent ratio analysis?
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Which country has the highest population density based on the information provided?
Which country has the highest population density based on the information provided?
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What is the estimated number of messages received per person per day in 2019?
What is the estimated number of messages received per person per day in 2019?
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How does the number of messages per person per day in 2021 compare to that in 2019?
How does the number of messages per person per day in 2021 compare to that in 2019?
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How many more people per square mile are there in Country B compared to Country C?
How many more people per square mile are there in Country B compared to Country C?
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What is the trend in the estimated number of messages per person from 2017 to 2021?
What is the trend in the estimated number of messages per person from 2017 to 2021?
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Study Notes
Population Density and Comparison
- Country A has the lowest population density among the three listed countries.
- Country B has 986 more people per square mile than Country C.
E-mail Usage Statistics
- In 2017, there were approximately 2.851 billion users sending 219.8 billion messages daily.
- By 2019, users increased to 3.193 billion; messages sent rose to 243.9 billion.
- In 2021, users reached about 3.481 billion, sending 276.7 billion messages.
- Messages received per user per day in 2021 estimated at 79.5, slightly higher than 77.1 in 2017.
- Predicted messages per person per day in 2021 is 1.03 times greater than in 2017.
Housing Market Analysis
- Price-to-rent ratio for a San Diego home priced at $510,000 with monthly rent of $3,100 is 13.7, suggesting buying may be more favorable.
- In Orlando, a house valued at $296,000 with rent at $1,050 results in a higher price-to-rent ratio of 23.5, suggesting renting may be better.
Student-Faculty Ratios
- Swarthmore College has a student-faculty ratio of 8 to 1, indicating 8 students for every faculty member.
- The lowest student-faculty ratio among the listed schools is found at Rice University.
Currency Exchange Rates
- Current exchange rates per U.S. dollar are 18.0774 for Mexican pesos, 1.31545 for Australian dollars, and 3.54239 for Israeli shekels.
- Value of computer chips imported from Israel at 28.5 million shekels translates to approximately $8,045,416.
- 1 Mexican peso equals 0.073 Australian dollars.
Housing Cost Guidelines
- Recommended guideline for housing costs is 3 to 10 percent of monthly income.
- A veterinary technician making $2,000, paying $500 in rent meets the guideline.
University Enrollment
- A university with 14,373 male and 18,524 female students has a total enrollment of 32,897, with a students-to-faculty ratio of 18:1.
Draft-Eligible Players
- Ratios indicate roughly 65 draft-eligible NCAA football players for every one drafted, totaling 17,225 players when 265 are drafted.
Hamburger Pricing
- The cost of $7.05 for 1.5 pounds of hamburger equates to $4.70 per pound.
Detergent Purchase Comparison
- A 32 oz detergent for $5.59 is more economical than 40 oz for $9.59.
Physician Rate Calculation
- A city with a population of 453,100 and 659 physicians has a rate of 145 physicians per 100,000 people.
Birth Rate Calculation
- Birth rate of 63.5 per 1,000 women ages 15-44 leads to total births of 3,492 for that year based on 54,965,000 women in the age group.
Units of Measure
- Large units include yotta (10²⁴) and zetta (10²¹); small units include yocto (10⁻²⁴) and zepto (10⁻²¹).
- Examples include a 1-terabyte hard drive equal to 10¹² bytes and operations occurring in 1 nanosecond equivalent to 10⁻⁹ seconds.
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Description
Test your knowledge on population density using data from three countries. Analyze the given populations and areas to determine which country has the lowest population density. Challenge yourself with additional questions related to population metrics.
